What went wrong at CFB Wainwright?

Dozens of investigators are looking into how a fast-moving fire managed to kill four soldiers and injure dozens more, some of them critically.

Also: Alberta residents are voting in a referendum that asks about immigration, relations with Ottawa and whether the province should start thinking about separating from Canada.

And: Canada’s inflation jumps in September due to higher fuel.

Plus: A B.C. ferry strikes a humpback whale, and wildlife in the Gulf of Mexico is in decline 16 years after the largest oil spill in history.